Papertape Calculator 2.1

Papertape Calculator 2.1 is a full function calculator that records all entries to a virtual paper tape (text file). It simplifies checking of ones work and allows multiple results to be displayed simultaneously. It Includes user defined functionality as well as binary, octal and hexadecimal arithmetic and importation and calculation of external data sets that include curve fits. Business functions include interest, annuity and loan calculations. Math functions include trigonometry, statistics, regression analysis, quadratic and cubic equations. The software also includes conversion factors and area under curve calculations (numerical integration). Ten memory locations store numbers and text together.